We present a search for chargino-neutralino associated production using like electric charge dilepton events collected by the CDF II detector at the Fermilab Tevatron in proton-antiproton collisions at root s = 1.96 TeV. One lepton is identified as the hadronic decay of a tau lepton, while the other is an electron or muon. In data corresponding to 6.0 fb(-1) of integrated luminosity, we obtain good agreement with standard model predictions and set limits on the chargino-neutralino production cross section for simplified gravity-and gauge-mediated models. As an example, assuming that the chargino and neutralino decays to taus dominate, in the simplified gauge-mediated model we exclude cross sections greater than 300 fb at 95% credibility level for chargino and neutralino masses of 225 GeV/c(2). This analysis is the first to extend the LHC searches for electroweak supersymmetric production of gauginos to high tan beta and slepton next-to-lightest supersymmetric particle scenarios.

T., A., S., A., D., A., A., A., A., A., J., A., et al. (2013). Search for Supersymmetry with Like-Sign Lepton-Tau Events at CDF. PHYSICAL REVIEW LETTERS, 110(20) [10.1103/PhysRevLett.110.201802].

Search for Supersymmetry with Like-Sign Lepton-Tau Events at CDF

BARRIA, PATRIZIA;GAROSI, PAOLA;MAESTRO, PAOLO;RUFFINI, FABRIZIO;
2013-01-01

Abstract

We present a search for chargino-neutralino associated production using like electric charge dilepton events collected by the CDF II detector at the Fermilab Tevatron in proton-antiproton collisions at root s = 1.96 TeV. One lepton is identified as the hadronic decay of a tau lepton, while the other is an electron or muon. In data corresponding to 6.0 fb(-1) of integrated luminosity, we obtain good agreement with standard model predictions and set limits on the chargino-neutralino production cross section for simplified gravity-and gauge-mediated models. As an example, assuming that the chargino and neutralino decays to taus dominate, in the simplified gauge-mediated model we exclude cross sections greater than 300 fb at 95% credibility level for chargino and neutralino masses of 225 GeV/c(2). This analysis is the first to extend the LHC searches for electroweak supersymmetric production of gauginos to high tan beta and slepton next-to-lightest supersymmetric particle scenarios.
2013
T., A., S., A., D., A., A., A., A., A., J., A., et al. (2013). Search for Supersymmetry with Like-Sign Lepton-Tau Events at CDF. PHYSICAL REVIEW LETTERS, 110(20) [10.1103/PhysRevLett.110.201802].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/45611
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